When any fertilizer is applied to the soil, it cannot be fully absorbed by the crop. Some of it is leached, volatilized or fixed by the soil and becomes an unusable form of the crop. There are many factors affecting fertilizer utilization, such as fertilizer varieties, crop types, soil conditions, cultivation management measures, environmental conditions, fertilization amount, fertilization methods and fertilization period. The utilization rate of nitrogen fertilizer in general fertilizer is 25%-40%, the phosphorus fertilizer is only about 20%, and the potassium fertilizer can reach more than 30%.
As can be seen from the above, the utilization rate of phosphate fertilizer is the lowest in the current season, and the utilization rates of nitrogen and potassium are equivalent. Its cumulative utilization rate can reach about 40%. Ammonium bicarbonate is 27%, urea is 35%, and thiamine is 45%. Ways to improve fertilizer utilization: choose the right time for fertilization and increase the application of organic fertilizer. Tests have shown that the use of organic-inorganic fertilizers can increase the utilization of nitrogen, phosphorus and potassium nutrients in fertilizers by 10%-20%.
It is well known that when fertilizer is applied, if the fertilizer cannot be rationally and scientifically fertilized, the nutrients in the fertilizer cannot be completely absorbed by the plants or the soil. Over time, the plant or soil is over-nutrient, and the consequences are that the plants cannot grow normally and the soil environment is destroyed. So how can plants or soils better absorb fertilizer nutrients? What are the top ten factors that affect the absorption of fertilizer nutrients?
Excessive nutrients affect the fertilization effect. Plants lacking certain elements will cause physiological obstacles and affect normal growth. However, if one element is excessive, it will affect the absorption of other elements, which will also hinder plant growth. The effect of pH on fertilizer efficiency is the best when the pH value is 5.5-6.5. The nutrients such as iron, copper, manganese and zinc are the most effective at pH below 6.
Different growth seasons affect the effect of fertilizer: the vegetative growth period is mainly nitrogen, nitrogen, phosphorus, potassium and trace elements are balanced; the flower bud differentiation period and flowering stage are mainly phosphorus and potassium-based fertilizers, which promote root development and flowering. The different physiological characteristics of plants affect the effect of fertilizer: when using special fertilizers, the corresponding other types of water-soluble fertilizers should be used according to the actual physiological conditions. Different media influence the effect of fertilizer: soil cultivation and soilless cultivation, the fertilizer formula is different.
Different water quality affects the effect of fertilizer: acid fertilizer or soft water is applied in hard water area, and calcium and magnesium fertilizer is regularly added in soft water area. Fertilization time affects the effect of fertilizer: the best time for fertilization is before 10 o'clock in the morning and after 4 o'clock in the afternoon, avoid fertilizing under noon sunlight and avoid fertilizing on rainy days.
The type of fertilizer affects the effect of fertilizer: different flowers, different growth seasons use different formulas of fertilizer, slow release fertilizer and water soluble fertilizer combined application, root application and foliar spray application, targeted fertilization, can reduce costs and improve Fertilizer effect. The imbalance of fertilizer content affects the effect of fertilizer: scientific fertilization is to promote the absorption of each element before avoiding antagonism.
The combination of organic fertilizer and chemical fertilizer can scientifically supply various nutrients of crops, enhance soil fertility and fertilization capacity, increase fertilizer efficiency, and increase crop yield. Soil fertilization, also known as formula fertilization or balanced fertilization, is based on the laws and characteristics of nutrients absorbed by crops, nutrient content and fertilization capacity in soil. Based on the understanding of fertilizer properties, nitrogen, phosphorus and potassium fertilizers are proposed based on crop yield. And the appropriate amount and proportion of trace elements and the corresponding fertilization techniques.
This article URL: How to improve the efficiency of fertilizer absorption, how to improve the use of fertilizer
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